Emacs... Make him start with with the minimum of customization. Teach him about buffers, a few shortcuts and how slime works. I am a vim user, and I learnt Em

Emacs... Make him start with with the minimum of customization. Teach him about buffers, a few shortcuts and how slime works. I am a vim user, and I learnt Emacs for the sole purpose of learning CLisp. After that he can choose to hack any text editor into a Lisp optimized one, or stick with Emacs and keep practicing Emacs with it's own dialect of lisp...